Datasheet

Intel® Local Control Panel Intel® Server System SR1550AL
Revision – 1.3
Intel order number D31982-006
62
9.1 LED Functionality
The following table identifies each LED and describes their functionality.
Table 54. LCP Control Panel LED Functions
LED Color State Description
Green On NIC Link
NIC1 / NIC2
Activity
Green Blink NIC Activity
On Legacy power on / ACPI S0 state Green
Blink
1,4
Sleep / ACPI S1 state
Power / Sleep
(on standby power)
Off Off Power Off / ACPI S4 or S5 state
Green/Amber Alternating
Blink
Pre DC Power On – 30-35 second
BMC Initialization
On Running / normal operation Green
Blink
1,2
Degraded
On Critical or non-recoverable condition. Amber
Blink
1,2
Non-critical condition.
System Status
(on standby power)
Off Off POST / system stop.
Green Random blink Provides an indicator for disk activity.
Disk Activity
Off Off
3
No hard disk activity
Blue On Identify active via command or button.
System Identification
Off Off No Identification.
Notes:
1. Blink rate is ~1 Hz with at 50% duty cycle.
2. The amber status takes precedence over the green status. When the amber LED is on or blinking, the green
LED is off.
3. Also off when the system is powered off (S4/S5) or in a sleep state (S1).
4. The power LED sleep indication is maintained on standby by the chipset. If the system is powered down
without going through BIOS, the LED state in effect at the time of power off will be restored when the system
is powered on until the BIOS clears it. If the system is not powered down normally, it is possible that the
Power LED will be blinking at the same time that the system status LED is off due to a failure or
configuration change that prevents the BIOS from running.
The current limiting resistors for the power LED, the system fault LED, and the NIC LED’s are
located on the Intel
®
Server Board S5000PAL.
9.1.1 Power / Sleep LED
Table 55. SSI Power LED Operation
State Power Mode LED Description
Power Off Non-ACPI Off System power is off, and the BIOS has not initialized the chipset.
Power On Non-ACPI On System power is on, but the BIOS has not yet initialized the chipset.
S5 ACPI Off Mechanical is off, and the operating system has not saved any context
to the hard disk.
S4 ACPI Off Mechanical is off. The operating system has saved context to the hard
disk.
S3-S1 ACPI Slow blink 1 DC power is still on. The operating system has saved context and
gone into a level of low-power state.
S0 ACPI Steady on System and the operating system are up and running.
Notes:
1. Blink rate is ~ 1Hz with at 50% duty cycle.